EP0301715B1 - Dispositif d'affichage - Google Patents

Dispositif d'affichage Download PDF

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Publication number
EP0301715B1
EP0301715B1 EP88306147A EP88306147A EP0301715B1 EP 0301715 B1 EP0301715 B1 EP 0301715B1 EP 88306147 A EP88306147 A EP 88306147A EP 88306147 A EP88306147 A EP 88306147A EP 0301715 B1 EP0301715 B1 EP 0301715B1
Authority
EP
European Patent Office
Prior art keywords
light
liquid crystal
matrix
display device
differently coloured
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88306147A
Other languages
German (de)
English (en)
Other versions
EP0301715A1 (fr
Inventor
Graham Leslie Wright
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thorn EMI PLC
Original Assignee
Thorn EMI PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thorn EMI PLC filed Critical Thorn EMI PLC
Priority to AT88306147T priority Critical patent/ATE83349T1/de
Publication of EP0301715A1 publication Critical patent/EP0301715A1/fr
Application granted granted Critical
Publication of EP0301715B1 publication Critical patent/EP0301715B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133621—Illuminating devices providing coloured light
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133621—Illuminating devices providing coloured light
    • G02F1/133622—Colour sequential illumination
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0235—Field-sequential colour display

Definitions

  • British Patent Specification No. 1433327 discloses a colour television display using three constant light sources producing red, green and blue light respectively to light a matrix of cells via a plurality of optical fibres. Associated with each source is a single liquid crystal cell whose transmission is modulated by the corresponding colour component of the video signal. The cells of the matrix are addressed sequentially and switched on and off to provide the television scan.
  • the colour balance could easily be adjusted by electrically varying the degree of optical transmission of the light valve shutters in their transmissive state. In the event that the contrast ratio of the liquid crystal shutters is inadequate two or more could be used sandwiched together.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of El Displays (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of Gas Discharge Display Tubes (AREA)
  • Liquid Crystal (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Vehicle Body Suspensions (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Claims (4)

  1. Dispositif d'affichage comprenant: une matrice (2) de cellules (3) à cristaux liquides réglables sélectivement pour afficher une image vidéo; et un moyen de sources lumineuses (4, 5, 6) pour fournir une pluralité de couleurs différentes, ledit moyen de sources lumineuses arrangé pour éclairer la totalité de ladite matrice (2) dans une séquence se répétant périodiquement et sans recouvrement avec une lumière pour chaque couleur différente (4, 5, 6); le dispositif caractérisé par des moyens d'obturation de la lumière (7, 8, 9) comprenant une pluralité de parties à cristaux liquides lesquelles parties sont déposées respectivement sur le chemin de ladite matrice (2) de chacune desdites couleurs différentes (4, 5, 6); et un moyen de commutation (10) pour provoquer pour chaque partie à cristaux liquides, une interruption, selon ladite séquence, de la lumière de sa couleur respective en inhibant la transmission de lumière.
  2. Dispositif d'affichage selon la revendication 1 dans lequel ledit moyen (4, 5, 6) pour produire une pluralité de rayons de lumière colorés différemment comprend un moyen pour produire des rayons de lumière des trois couleurs primaires.
  3. Dispositif d'affichage selon les revendications 1 ou 2 dans lequel ledit moyen de sources lumineuses pour produire une pluralité de rayons de lumière colorés différemment comprend une pluralité de sources lumineuses (4, 5, 6) chacune produisant un rayon de lumière coloré différemment.
  4. Dispositif selon toute revendication précédente dans lequel un moyen d'obturation de lumière (7, 8, 9) est associé à chacun dudit rayon de lumière coloré différemment.
EP88306147A 1987-07-30 1988-07-06 Dispositif d'affichage Expired - Lifetime EP0301715B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88306147T ATE83349T1 (de) 1987-07-30 1988-07-06 Anzeigevorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8718046 1987-07-30
GB878718046A GB8718046D0 (en) 1987-07-30 1987-07-30 Display device

Publications (2)

Publication Number Publication Date
EP0301715A1 EP0301715A1 (fr) 1989-02-01
EP0301715B1 true EP0301715B1 (fr) 1992-12-09

Family

ID=10621531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88306147A Expired - Lifetime EP0301715B1 (fr) 1987-07-30 1988-07-06 Dispositif d'affichage

Country Status (6)

Country Link
EP (1) EP0301715B1 (fr)
JP (1) JPS6450689A (fr)
AT (1) ATE83349T1 (fr)
DE (1) DE3876530T2 (fr)
ES (1) ES2037226T3 (fr)
GB (1) GB8718046D0 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218842A (en) * 1988-05-18 1989-11-22 Stc Plc Liquid crystal cell addressing
GB8825429D0 (en) * 1988-10-31 1988-11-30 Raychem Ltd Frame-sequential colour display system
US5115228A (en) * 1990-08-02 1992-05-19 International Business Machines Corporation Shuttered display panel
GB9020892D0 (en) * 1990-09-25 1990-11-07 Emi Plc Thorn Improvements in or relating to display devices
JPH0686408B2 (ja) * 1990-09-28 1994-11-02 株式会社日本触媒 アクリル酸またはメタクリル酸エステルの製造方法
DE4128628A1 (de) * 1991-08-26 1993-03-04 Viorel Alius Anordnung zur erzeugung bewegter farbbilder
GB2268263A (en) * 1992-06-30 1994-01-05 Ibm Input device for a visual display unit
GB2268853A (en) * 1992-07-09 1994-01-19 Secr Defence Colour television display projection device
GB2278480A (en) * 1993-05-25 1994-11-30 Sharp Kk Optical apparatus
DE69421511T2 (de) * 1993-06-30 2000-04-27 Koninkl Philips Electronics Nv Matrixanzeigesysteme und verfahren zu deren steuerung
US5668572A (en) * 1995-05-26 1997-09-16 Texas Instruments Incorporated Color temperature compensation for digital display system with color wheel
US5932626A (en) * 1997-05-09 1999-08-03 Minnesota Mining And Manufacturing Company Optical product prepared from high index of refraction brominated monomers
US6107364A (en) * 1997-05-09 2000-08-22 3M Innovative Properties Company Methyl styrene as a high index of refraction monomer
US6355754B1 (en) 1997-05-09 2002-03-12 3M Innovative Properties Company High refractive index chemical composition and polymers and polymeric material derived therefrom
JP7070429B2 (ja) 2016-12-08 2022-05-18 Jnc株式会社 リバースモードの液晶デバイス

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62106437A (ja) * 1985-11-01 1987-05-16 Fujitsu Ltd 液晶表示パネル

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569614A (en) * 1969-04-10 1971-03-09 Thomas F Hanlon Liquid crystal color modulator for electronic imaging systems
GB1433327A (en) * 1972-03-17 1976-04-28 Axbey P J Display devices
US4366500A (en) * 1981-01-29 1982-12-28 Eastman Kodak Company Electronic color imaging apparatus having integral multicolor arrays
US4366499A (en) * 1981-01-29 1982-12-28 Eastman Kodak Company Electronic color imaging apparatus having improved color control device
FI73325C (fi) * 1985-03-05 1987-09-10 Elkoteade Ag Foerfarande foer alstring av individuellt reglerbara bildelement och pao dessa baserad faergdisplay.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62106437A (ja) * 1985-11-01 1987-05-16 Fujitsu Ltd 液晶表示パネル

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN volume 11, no. 319 (P-627) (2766), 17th October 1987 *
PATENT ABSTRACTS OF JAPAN volume 6, no. 18 (P-100) (896), 2nd February 1982 *

Also Published As

Publication number Publication date
ATE83349T1 (de) 1992-12-15
DE3876530D1 (de) 1993-01-21
EP0301715A1 (fr) 1989-02-01
JPS6450689A (en) 1989-02-27
GB8718046D0 (en) 1987-09-03
ES2037226T3 (es) 1993-06-16
DE3876530T2 (de) 1993-06-17

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